4135442644 has 24 divisors (see below), whose sum is σ = 8066036160. Its totient is φ = 1843664256.

The previous prime is 4135442629. The next prime is 4135442651. The reversal of 4135442644 is 4462445314.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1599112 + ... + 1601695.

It is an arithmetic number, because the mean of its divisors is an integer number (336084840).

Almost surely, 2^4135442644 is an apocalyptic number.

It is an amenable number.

4135442644 is a deficient number, since it is larger than the sum of its proper divisors (3930593516).

4135442644 is a wasteful number, since it uses less digits than its factorization.

4135442644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200847 (or 3200845 counting only the distinct ones).

The product of its digits is 184320, while the sum is 37.

The square root of 4135442644 is about 64307.4073804877. The cubic root of 4135442644 is about 1605.1193635408.

Adding to 4135442644 its reverse (4462445314), we get a palindrome (8597887958).

The spelling of 4135442644 in words is "four billion, one hundred thirty-five million, four hundred forty-two thousand, six hundred forty-four".